Trolley-supporting mechanism.



W. SCHAAKE.

TROLLEY SUPPORTING MECHANISM.

APPLICATION FILED JUNE 5, 19I3.

Patented Mar. 14, 1916.

A ORNEY THE COLUMBIA VLANOGRAPH C0.. WASHINGTON. D1 :2.

STATE-S. OFFICE; I

WILLIAM SGHAAKE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNORlTO WESTINGHOUSE ELECTRIC AND ,MANUEAGTURING COMPANY; A 2CQRP-0RATIQN. OFPIENNSYLXLANI-A.

TROLLEY-SUPPORTING MECHANISM;

Specification of Letterslatent.

Application filed June 5, 1913. Sria1'No;'771,870.

ployed upon mining locomotives: or similar,

vehicles where the head room is limited; One objectof my'invention "1s to provide a simple and compact structure of the class above indicated lcavingrelatively few parts Which'are so fashioned andshaped as to :co*

operate, the one 1' with the other," in such manner as to "PIOVTdQ a smgle unitary struc-' ture, the parts being held together without the usual bolts and screws.

Another object of my invention "is to pro vide a trolley base substantially all parts of which may conveniently constitute cast-V ings upon which no machine work is neces-g sary and which may be readily assembled and taken apart.

A still further object of my'invention is" to provide means for adjusting the tension of the actuating sprmg whlch shall be located in a'convenient positlonywhere 1t 1s readily; accessible to the operator without taking the device apart. 7

My lIlVGIltlOTl' is illustrated in the-accom panymg drawing, in wh1ch Figure 1 is a view, partially in sectionand partially in side elevation, of a -trolley-'-sup'-.

porting mechanism constructed accord ance with my invention; Fig. 2 a similar, view of the device shown lIlF 1g. 1, the section being taken along'the line IIII of Fig; 1; Fig. 3 is a plan view of a portion of the mechanism; Fig.4 is a sectional view of certain parts, taken; along the line IV' IV of Fig. 2 and'Figs. 5 and 6 are, respectively, a: plan view and a SQCtlOIliIl' view of one of the parts of the device.

Referring to the drawing, the device here shown comprises a portion 1 of a locomotive or other vehicle, a base 2,:a polesocket 3, a trolley pole 4, a spring stop or pressure member 5, a gib member '6, a latching member'7, an actuating spring "8,. aspring seat: '9 and atens1o-n'rod'10a r The base 2 comprises a cylindrical bearing and springyreceiving :member 12 which is adapted forrotatable-movement within an opening 13 in the body portion 1 of the vehicle and is'provided, atits upper end, witha'plurality of substantially parallel supporting members 15 and 16forming integralparts thereof. The-cylindrical bear- 1ng=member-12 is provided withoppositely PatentedMar; 14, 1916. c

disposed longitudinal-openings or slots 17 I and 18 extending 'theentire' lengthof-the member, and also. withhnupper outwardly P j i g-fl nge 19 adaptedtc rest upon" the body'portionl and to-turn'thereon: The

supporting members 15 audio are' opp'o-'"- sitel-y curved and of *like construction and each-comprisesessentially a central portion" 20 0f cylindrical contour having an in wardlyprojecting'flange 21 which is pro vided with a central opening or slot 22% receive a member to be hereinafter described.

The pole'soclcet 3 may be of any suitable const-ructionto receive-and clampthe pole 4 which 'is provided with a trolley harp24-L and Wheel 25, according to the usualpractice.- The pole socket 3, moreover, is pivotally mounted upon a 'pinor shaft 26tha-t' is *supportedbetween the-members 15 and 16and is provided with parallel projecting arms" 27 'and-'28,*each of which has a curved bearing member 30' formed integral therewith and adapted to receive the ends of the" gib 'member G; The-relative proportions and arrangement; of parts isso'chosen that the gib-member 61'S-ClISp'OSd'0V(-!Ith6 cylindri cal 'sprmg-recelvlng or bearmgmernber 12$ The bifurcatedi latch member 7-embodi'es'a plurality of arms 32' and '33, the endsof which co'iiperate' with' the ends-of the pro-'- je'cting arms'27 and'28 when "the trolley4 is inits lowest position for the purpose of rest-raining it. 7

The actuating spring 18 "is disposed within the-bearing sleeve'12 'and'its lower end is adaptedto rest upon the spring seat -9 which is provided with oppositely disposed portions 34- an'd 35 which-are, respectively,

adapted to project into the slots or openings 17 and l8' for the purpose ofpreventin'gany rotativ e' movement "or the seat 9. It will be understood,therefore, that the seat 9 is adapted to have longitudinal move 40 having a central elongated recess or opening ll and provided at opposite sides with upwardly and outwardly projecting members 42 which, respectively, are provided with a centrally disposed rib 43. -When the several parts or" the device are assembled, the portions 42 of the spring stop 5 bear against the inwardly projecting flanges 21 of the supporting members 15 and 16, and the ribs l3 project upwardly into the openings 22 and thereby maintain the member 5 in position. Obviously, the opening 41 is to accommodate the tension rod 10 and is, therefore, parallel to the arms 27 and 28v of the pole socket 3. Assuming the various parts to occupy th positions shown in Fig. 1, it is evident that the actuating spring 8, being positively restrained at its upper end, exerts a pressure upon the spring seat 9 and thus maintains the trolley wheel 25 under pressure in engagement with a trolley conductor (not shown) through the agency of the tension rod 10, the gib 6 and pivotally mounted pole socket 3.

In case it is desired to lower the pole 4, it is only necessary to force it downwardly until the latch 7 engages the ends of the projecting arms 27 and 28. Under these conditions the spring 8 is fully compressed and the spring seat 9 is raised to its upper position.

It is frequently desirable to adjust the tension of the actuating spring 8, which may be accomplished very readily merely by turning the rod 10 by means of any suitable implement. In so doing, the rod 10 is moved with respect to the nut 37 by reason of the screw-threaded engagement therewith, and, hence, adjustments of the spring v 8 may be effected. As already pointed out,

the nut 37 and spring seat 9 are prevented from rotative movement.

If it should be desired to remove the spring 8, the rod 10 is unscrewed until the gib 6 may be slipped free from the curved bearing members 30, after which the springstop or pressure member 5 is pressed downwardly until the ribs 23 are below the projecting portions 21. The member 5 may then be moved through an angle of substantiallv degrees until the portions '42 thereof entirely disengage the projecting members-21 after which, said member 5 may be raised, together with the spring 8, rod 10, gib 6, and spring seat 9 between the supporting members 15 and 16, as will be readily understood.

It will be noted that all of the parts may be cast and that they are fitted together and coiperae with each other to be held in place without requiring any machine work or accessory fastening devices such as screws and nuts,-etc.

While the device herein shown and de scribed constitutes what I now consider the preferred form of my invention, I do notwish to be restricted to the specific struca tural details and arrangement and location. of parts, as it is evident that many modiiications may be effected therein without departing from the spirit and scope of my invention. I, therefore, desire that only such limitations shall be imposed as are indicated in the appended claims.

I claim as my invention:

1. In a trolley-supporting device, the combination with a cylindrical base having an upper portion for supporting a trolley pole,

and spring-actuated means disposed within said cylindrical base and cooperating with. said pole, of a removable member of greater.

length than width adapted to be. inserted into the upper portion of said base and to be held in position thereby after being rotated a predetermined degree, said member being adapted to cooperate with said springactuated means.

2. In a trolley-supporting device, the com.- bination with a cylindrical base, the upper end of which is provided with oppositely disposed inwardly projecting flanges having transverse slots therein, of-a disk member of less diameter than the distance between said flanges and having corresponding outwardly projecting flanges provided with transverse lugs, said disk member being disposed beneath. said base flanges and having its flanges in engagement therewith and its transverse lugs disposed in the transverse slots of said base flanges.

3. In a trolley-supportingdevice, the comprojecting lugs, and a removable member having oppositely disposed outwardly projecting lugs adapted to engage said base lugs, of a pole pivotally associated with said base, and spring-actuated means cooperating therewith and disposed within said cylindrical base and engaging said member.

5. In a trolley-supporting device, the combination with a cylindrical base having a plurality of oppositely disposed inwardly projecting lugs, and a removable member having oppositely disposed outwardly projecting lugs adapted to engage said'base lugs, of a coil spring contained within said cylindrical base and adapted to act against said member.

6. In a trolley supporting device, the combination with a cylindrical base having upwardly projecting supporting members, a spring disposed in said base, a pole pivoted between said supporting members, and a pressure member disposed in the upper part of said cylindrical base and adapted to engage the upper end of said spring and to engage and be held in position by said supporting members.

7. A trolley-supporting device comprising a recessed base having an upper portion for supporting a trolley pole, a coil spring disposed in said recessed base and cooperating with said trolley pole, and a movable pressure member of greater length than width and adapted to be inserted into the upper portion of the recessed base and to be held in position by said base after being rotated a portion of a revolution, said member being adapted to cooperate with the upper end of said spring.

In testimony whereof, I have hereunto subscribed my name this 28th day of May, 1913.

WILLIAM SCI-IAAKE.

Witnesses:

N11: WAHLBERG, B. B. HmEs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

